A process for surgical operations on a rectal/haemorrhoidal prolapse comprisesstages of realising, in the anal canal, at least a first circular stitching ata first portion of a haemorrhoidal prolapse； realising at least a secondcircular stitching in a second portion of the haemorrhoidal prolapse, andnearing the first circular stitching and the second circular stitching inorder to create a constriction of the haemorrhoidal prolapse. The inventionalso relates to a device, preferably for actuating the process, whichcomprises a hollow divaricator (17) having a prevalent development directionalong a longitudinal axis (Z) and being insertable in a patient's analorifice. The device further exhibits a window (29) defining an operationalarea and creating a communication between a cavity (17b) internal of thedivaricator (17) and a portion of haemorrhoidal prolapse. The device furthercomprises means for opening and closing (31) the window (29).
